Ultasound check up with perinatologist

Went in today for check up with perinatologist. They thought he might have a club foot and wanted to make sure he didn't show signs of the heart issues that my daughter has. Everything looked perfect no issues with his feet or heart or anything else. They did say he is a big boy though. I am 32 weeks and he is measuring around 35-37 weeks and estimated weight of 5.5 lbs. Here are some pics from today.

Quoting ElleBelle (35 weeks):
That's great news! And Wowza! Lol at almost 32 weeks this baby was 3lb 10oz

I know he said he was big for 32 weeks! I am wondering if my due date is off a bit or I failed my one hour glucose and am doing my three hour tomorrow, so maybe that is why he is big. I have only gained two pounds so I was surprised he was so big but on the other hand I have been feeling miserable and having contractions like what I had 36+weeks with my other kids. So I don't know guess I will see how three hour test goes and then go from there.